KISSLICER = Freeware with upgrade to pro version for about 40 Euros http://kisslicer.com/download.html

Which programs do you use ?

I have tried all of the above, and all have certain plus and minus points. However now I use NETFABB just for manipulation of STL files (rotating into correct orientation)
and KISSLICER for making the code.

What settings do you use ?

I have now created a separate page under the “3D Printing Software” tab just for downloading the files…..predictably named “Slicer Configuration Files”